Identification of Bottom Contribution in Non-photonic Electron Spectra and v2 at RHIC
نویسنده
چکیده
We present a study on the spectra for heavy flavor (charm and bottom) decayed electrons in 200 GeV p+p collisions and provide the relative contributions of charm and bottom hadrons from the PYTHIA calculations. The results suggest that the crossing point of the electron spectra from charm and bottom decays is above 7 GeV/c and bottom contribution is not dominant for electron pT < 3 GeV/c. The upper limit of the relative cross section ratio is reported as σbb̄/σcc̄ ≤ (0.49±0.09±0.09)%. We also compare the v2 distribution from simulation to the experimental data in 200 GeV Au+Au collisions and estimate the possible charm v2.
منابع مشابه
Identify bottom contribution in non-photonic electron spectra and v2 from Au+Au collisions at RHIC
We present a study on the spectra and elliptic flow v2 for heavy flavor (charm and bottom) decayed electrons provided the relative contributions of charm and bottom hadrons from the PYTHIA calculations. We made a simultaneous fit to both measured non-photonic electron spectra and v2 distributions. The results suggest that the bottom contribution is not dominant for electron pT < 5 GeV/c in the ...
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